1427441231 has 8 divisors (see below), whose sum is σ = 1451174400. Its totient is φ = 1403779608.

The previous prime is 1427441207. The next prime is 1427441243. The reversal of 1427441231 is 1321447241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1427441231 is a prime.

It is a super-2 number, since 2×1427441231² = 4075176935917590722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1427441194 and 1427441203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427441731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23120 + ... + 58218.

It is an arithmetic number, because the mean of its divisors is an integer number (181396800).

Almost surely, 2^1427441231 is an apocalyptic number.

1427441231 is a deficient number, since it is larger than the sum of its proper divisors (23733169).

1427441231 is an equidigital number, since it uses as much as digits as its factorization.

1427441231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35773.

The product of its digits is 5376, while the sum is 29.

The square root of 1427441231 is about 37781.4932341219. The cubic root of 1427441231 is about 1125.9507961404.

Adding to 1427441231 its reverse (1321447241), we get a palindrome (2748888472).

The spelling of 1427441231 in words is "one billion, four hundred twenty-seven million, four hundred forty-one thousand, two hundred thirty-one".